Question about 2001 Toyota 4Runner

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My 2001 toyota 4 runner when going up steep hills loses power and doesn't want to go no faster than 50mph, i've noticed it using more gas too? when idling i held the gas pedal to the floor and it sounds like its missing,i have changed the cats on it thinking that might b the problem but it wasn't the case,i'm am thinking it might b the coil pack or bad spark plugs?? if you could help me out that would b great

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I would check the plugs first and if they are ok I would check the compression in the cylinders.

Posted on Nov 14, 2010

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If you have changed convertors it sounds like it is getting either not enough fuel or too much fuel.
Also check for vacuum leaks they can cause a lean condition as well.

Posted on Nov 14, 2010

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Mar 28, 2015 | 2001 Mazda Tribute

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My 96 Toyota Tacoma 4 cyl manual suddenly started losing power while going up hills and accelerating fast. I can slowly get my truck up to speed on flat ground but not over 50mph. When I press the gas...


i would agree with them, i had the same thing go wrong in my gmc sierra replaced fuel pressure regulator and works great now, although you could get lucky and it be the fuel filter

Aug 25, 2013 | Toyota Tacoma Cars & Trucks

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My 2011 Sonata cruise control stops working going down steep hills. The set light goes off. I had it set at 50mph but applied brakes when it increased to 70mph. Dealership says they can find nothing...


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Aug 25, 2011 | Hyundai Motor 2004 Sonata

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It loses power on acceleration and serious loss of power on hills


sounds like a clogged fuel filter. you need to have the engine pressure checked for leaks, you can rent the pressure checker at autozone, it connects to ur radiator and u pump pressure into the cooling system if u find water leaking around the head u know u have a blown head gasket. if ok then check the cylinder compression should beable to rent this also. it screws into the spark plug holes has a gauge on it. alternator problem w/ the light is probaly you need to tighten the belt.hope this helps!!!

Apr 15, 2010 | 1990 Toyota Camry

1 Answer

Problems with losing power when i'm driving along


Hi
It's most likely the EGR Valve, "Exhaust Gas Recycler Valve" when they start to go you lose loads of power especailly at 30-50 and on hill's

Is the engine light or any lights on the dash?
EGR Valves are about £130 you can fit them your self also.

Somedays it wil not do it at all other days you can barely drive the car.

Worth mentioning you may be able to clean it, so have a go before buying a new one. Use carb cleaner and spray it all over it, dont be shy, you cant damage it. dry it off and re-fit it that cures it then you should be ok, but be aware it may fail over the coming months.

Hope this helps, if not get back to me for more info.
It could be a few things but your description is so presise I would say it's The EGR.

Regards
Dan

Feb 04, 2010 | 1991 Peugeot 405

1 Answer

When i drive i can hear a clanking sound near the rear of the 4 runner i checked the u joints and they seem to be fine, its aspecialy bad when i let of the gas and coast down a hill


did you check the mounts on the spare that is usually mounted underneath the 4Runner? also check for lose hangers on your exhust system

Jan 15, 2010 | 1990 Toyota 4Runner

1 Answer

Loss of power when driving up hill


It depends: how steep are the hills? Assuming you have the standard 4-speed or 5-speed gearbox, it's likely that the tiny engine (built for economy, not for power) is simply not generating enough torque to pull the car up in high gear. Have you tried simply downshifting? If the problem truly is the engine losing power and not just lugging due to being in too high a gear on a steep grade, you should check your fuel pressure and you may also want to check the condition of the fuel pump and feeder lines inside the gas tank. A 20 year old car will probably have some disintegration of the feeder lines, they may even be partly broken off inside the tank resulting in poor fuel flow, or disintegrated rubber may be gumming up the strainer or the pump itself. Personally, I'd replace the fuel lines, fuel filter and if low pressure still exists, the fuel pump as well.

Jun 11, 2009 | 2005 Renault R5

1 Answer

Loses power on steep grade


Sounds like you need a clutch replacement.

Try this. Go somplace where there are no cars, and no possibility of running into anything. Stop the car. Set the park brake. With the engine running, put the vehicle in 1st gear. Hold the foot brake pedal, and give it gas, and let out the clutch slowly.
If the engine does not stall real quick, the clutch disc is bad.

Jan 24, 2009 | 1991 Toyota 4Runner

1 Answer

Poor acceleration with A340H A/T on hills and onramps


1992 4 runner 4 x 4, I think it is already passed 150,000 miles.the pistons and rings are lose and are leaking, the pressure probably low, try to use some oil treatment, I used Market America special oil treatment and got a very good result. you can set to 19 degrees and add some of those treatment see the result, this is cheapest way, just try it, because I can not test drive your car and check the engine pressure.
Please be sure go to MarketAmerica.com and check it first.

Jul 16, 2008 | 1992 Toyota 4Runner

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